20100189582 - Dual stage pump having intermittent mid-shift load supports: A hydraulic pump is disclosed. The hydraulic pump may have a first fluid section (12), a second fluid section (14), and an input shaft (16) extending through the first fluid section and the second fluid section. The input shaft may have a first end (44), a second end (46), and... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20100189585 - Scroll compressor: A scroll compressor includes first and second scroll members housed in a casing. The first scroll member has a fluid inlet and a first through hole spaced from the fluid inlet. A fluid introducing pipe is configured to connect to the first through hole. A piston, having an annular groove... Agent: GlobalIPCounselors, LLP

20100189586 - Pump housing: A pump housing, in particular a vane cell pump housing, having a suction connection point, from which a suction channel emerges which opens with a suction-channel opening into a receiving chamber in the pump housing, and having a pressure connection point, from which a pressure channel emerges which opens at... Agent: Cohen, Pontani, Lieberman & Pavane LLP

07/22/2010 > patent applications in patent subcategories.

20100183466 - Displacement machine according to the spiral principle: A displacement machine of spiral-type construction for a compressible medium includes a displacement body having a carrier disc and helical blades extending out from both sides of the carrier disc. The carrier disc has a hub which is supported by a hub bearing on an eccentric disc which is part... Agent: Henry M Feiereisen, LLC Henry M Feiereisen

20100183465 - Scroll compressor: The scroll compressor of the invention has a compression unit including a movable scroll made up by forming a vortical wrap in an end wall and a similar fixed scroll, and being capable of carrying out compression along with an orbiting movement of the movable scroll with the wraps of... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20100178186 - Fluid motor having improved braking effect: The invention relates to a motor having an inner motor compartment (18). A rotatable rotor (20) can be driven by applying a pressure medium to it, wherein the pressure medium expands in a working region (40) of the motor compartment (18). A brake element (22) for braking the rotor (20)... Agent: Banner & Witcoff, Ltd.

20100178187 - Vacuum pump: A dry vacuum pump comprises a stator component and at least one rotor component. To improve the tolerance of the pump to corrosive gases passing through the pump, the stator component and/or said at least one rotor component are formed from silicon-molybdenum (SiMo) ductile iron.... Agent: Edwards Vacuum, Inc.

20100178188 - Gerotor motor and brake assembly: A hydraulic device includes a gerotor assembly, a wobble stick, an output shaft, a housing assembly, a first port in the housing assembly, a second port in the housing assembly, first brake disks, second brake disks, a piston, and a biasing member. The gerotor assembly includes a rotor and a... Agent: Rankin, Hill & Clark LLP

20100178190 - Accurate powder metal component, assembly and method: The invention provides an accurate powder metal component having a body with opposed surfaces at least one of which has at least one projection of smaller cross-sectional area than the main portion of the body of the component. The distance from the free end of the projection to the opposite... Agent: Quarles & Brady LLP

20100178191 - Screw pump and screw rotor: A cross section of a tooth profile of a first screw rotor (17) perpendicular to the rotor axis includes a tooth top arc (A1B1), a tooth bottom arc (C1D1), a first curve (A1C1), and a second curve (B1D1). The first curve (A1C1) is a first trochoidal curve that connects a... Agent: Locke Lord Bissell & Liddell LLP Attn:IPDocketing

07/08/2010 > patent applications in patent subcategories.

20100172780 - Scroll compressor: An object of the present invention is to provide a scroll compressor capable of three-dimensional compression, which can prevent performance deterioration and performance variation due to gas leakage occurring on an outer peripheral side of a step portion of a spiral wrap and can achieve performance stabilization and performance improvement.... Agent: Westerman, Hattori, Daniels & Adrian, LLP

20100172782 - Vacuum pump: A pair of Northey rotors for a vacuum pump, in which each rotor comprises two opposing, substantially parallel faces, and a peripheral surface located between the opposing faces. In order to reduce damage caused by pumping a gas stream containing liquid or solid particulates, a plurality of grooves is located... Agent: Edwards Vacuum, Inc.

07/01/2010 > patent applications in patent subcategories.

20100166588 - Vane pump with rotating cam ring and increased under vane pressure: An example vane pump comprises a shaft driving a rotor. The rotor has a plurality of vane grooves, with a vane received in each of the plurality of vane grooves, and an under vane chamber for communicating a pressurized fluid into the grooves to bias the vanes radially outwardly of... Agent: Carlson, Gaskey & Olds, P.C.

20100166589 - Scroll type fluid machine: The invention reduces a centrifugal force of a orbiting scroll which acts on an auxiliary crank mechanism. A crank pin which is eccentric from a main shaft portion is formed in a drive shaft, and a main balance weight is provided in a base end side of the crank pin.... Agent: Crowell & Moring LLP Intellectual Property Group

20100166590 - Rotary fluid pressure device and improved parking lock assembly therefor: A rotary fluid pressure device (11) includes an end cap (23) which is disposed rearwardly of, and adjacent, the fluid displacement mechanism (21). The end cap defines a piston cavity (103) in which is disposed a lock piston (105), which is moveable between a first position and a second position,... Agent: Merchant & Gould PC

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